From: Shan Wei Date: Wed, 6 Jul 2011 03:43:12 +0000 (-0700) Subject: net: vlan: enable soft features regardless of underlying device X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=712ae51afd;p=deliverable%2Flinux.git net: vlan: enable soft features regardless of underlying device If gso/gro feature of underlying device is turned off， then new created vlan device never can turn gso/gro on. Although underlying device don't support TSO, we still should use software segments for vlan device. Signed-off-by: Shan Wei Signed-off-by: David S. Miller --- diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 7ea5cf9ea08a..86bff9b1ac47 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -586,9 +586,14 @@ static void vlan_dev_uninit(struct net_device *dev) static u32 vlan_dev_fix_features(struct net_device *dev, u32 features) { struct net_device *real_dev = vlan_dev_info(dev)->real_dev; + u32 old_features = features; features &= real_dev->features; features &= real_dev->vlan_features; + + if (old_features & NETIF_F_SOFT_FEATURES) + features |= old_features & NETIF_F_SOFT_FEATURES; + if (dev_ethtool_get_rx_csum(real_dev)) features |= NETIF_F_RXCSUM; features |= NETIF_F_LLTX;